Increased efficiency of direct nanoimprinting on planar and curved bulk titanium through surface modification

Microelectron Eng. 2013 Dec;112(100):67-73. doi: 10.1016/j.mee.2013.05.016.

Abstract

In this work the direct transfer of nanopatterns into titanium is demonstrated. The nanofeatures are imprinted at room temperature using diamond stamps in a single step. We also show that the imprint properties of the titanium surface can be altered by anodisation yielding a significant reduction in the required imprint force for pattern transfer. The anodisation process is also utilised for curved titanium surfaces where a reduced imprint force is preferable to avoid sample deformation and damage. We finally demonstrate that our process can be applied directly to titanium rods.

Keywords: Implant; Metal; Nanoimprint; Stem-cell; Topography.